CN218300964U - Mobile DC standby power supply device for transformer substation - Google Patents
Mobile DC standby power supply device for transformer substation Download PDFInfo
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- CN218300964U CN218300964U CN202221808327.8U CN202221808327U CN218300964U CN 218300964 U CN218300964 U CN 218300964U CN 202221808327 U CN202221808327 U CN 202221808327U CN 218300964 U CN218300964 U CN 218300964U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a portable direct current stand-by power supply device of transformer substation belongs to transformer technical field. The intelligent charging cabinet comprises a microcomputer monitoring device, an incoming line breaker, a DC220V high-frequency switch power supply output breaker, a 48V communication power supply output breaker, a storage battery pack breaker, a bus switching breaker, a direct-current 48V high-frequency switch power supply, a direct-current 220V high-frequency switch power supply, a bus quick connector, a battery pack quick connector, a universal wheel and a dual-power automatic transfer switch, wherein the microcomputer monitoring device is installed on a mobile charging cabinet body. The utility model discloses realize not having a power failure and change DC system, delay maintenance, power off time, security, stability and the reliability of reinforcing electric wire netting.
Description
Technical Field
The utility model relates to a portable direct current stand-by power supply device of transformer substation belongs to transformer technical field.
Background
The direct current system of the transformer substation is power supply equipment for providing direct current power supply for signal equipment, relay protection, automatic devices, emergency lighting, emergency power supply and breaker opening and closing operations. The direct current system is an independent power supply, and under the condition that external alternating current is interrupted, the direct current system is an important device for ensuring that a backup power supply-storage battery continuously provides direct current power supply. The reliability and safety of the direct current system directly influence the reliability and safety of the power supply of the power system. Once a direct current system fails, the whole substation is in an out-of-control state, and once an accident occurs, a line cannot trip, and a fault cannot be removed, so that the consequences are not imagined.
When the alternating current is lost, the storage battery must provide power for the control, automatic device, communication protection device and the like of the transformer substation. When the storage battery is switched on or off during operation, the load is increased through relay protection; and the capacity of the storage battery in operation is generally lower than the nominal capacity of the nameplate, the voltage drops quickly in the later period of discharge, and the normal action of the switch cannot be ensured due to the excessively low voltage.
Therefore, the movable direct-current standby power supply for the transformer substation is developed, the direct-current system can be replaced without power failure, the overhaul and power failure time is delayed, and the safety, stability and reliability of a power grid are enhanced.
Disclosure of Invention
The utility model aims at providing a portable direct current stand-by power supply of transformer substation in order to solve above-mentioned problem realizes not having the outage and changes direct current system, postpones maintenance, power off time, the security, the stability and the reliability of reinforcing electric wire netting.
In order to achieve the above object, the utility model provides a following technical scheme:
a mobile direct-current standby power supply device of a transformer substation is characterized by comprising a microcomputer monitoring device, an incoming line breaker, a DC220V high-frequency switching power supply output breaker, a 48V communication power supply output breaker, a storage battery pack breaker, a bus switching breaker, a direct-current 48V high-frequency switching power supply, a direct-current 220V high-frequency switching power supply, a bus quick connector, a battery pack quick connector, a universal wheel and a dual-power automatic transfer switch, wherein the microcomputer monitoring device is arranged on a mobile charging cabinet body;
the incoming line circuit breaker is connected with a dual-power automatic transfer switch, the dual-power automatic transfer switch is connected with a direct-current 220V high-frequency switching power supply, a DC220V high-frequency switching power supply output circuit breaker, a bus switching circuit breaker and a bus quick connector are sequentially connected, the bus quick connector is connected with a storage battery pack circuit breaker, a direct-current 48V high-frequency switching power supply is connected with a 48V direct-current output circuit breaker, and a microcomputer monitoring device is connected with the components through RS 485.
Preferably, the microcomputer monitoring device has the functions of outputting overvoltage and undervoltage protection, outputting current-limiting protection, short-circuit protection and insulation monitoring, and has the function of insulating alarm output;
preferably, the dual-power automatic transfer switch takes a generator and a mains supply dual-path incoming line as an input power supply, a dual-power switching device is configured, the mains supply and the generator are switched in a dual-path mode, and when the mains supply disappears, the dual-power automatic transfer switch is automatically linked with the generator to be started and switched to the side of the generator;
preferably, the direct-current 48V high-frequency switching power supply is a KD6BC30 power supply module, and the DC220V high-frequency switching power supply output breaker is a K6B20 power supply module;
preferably, the dual-power automatic transfer switch adopts a switching device with the model number of BQ3-63 III/H4A;
preferably, the movable charging cabinet body is made of stainless steel materials.
The utility model discloses a portable direct current stand-by power supply of transformer substation, structural design is reasonable, the design is as input power by generator and commercial power double-circuit inlet wire, dispose dual supply auto-change over device, commercial power and generator double-circuit switch, automatic linkage generator start-up and switch to the generator side when the commercial power disappears, can export DC220V and DC48V and satisfy the direct current of required precision, not only satisfy the signal equipment of transformer substation, relay protection, automatics, the emergency lighting, emergency power and circuit breaker divide, the direct current load of combined floodgate operation, still satisfy the communication device load. The utility model discloses each part is mutually supported and is used, can realize changing DC system not having the power failure, postpones maintenance, power off time, the security, the stability and the reliability of reinforcing electric wire netting.
Drawings
FIG. 1 is a schematic view of the internal structure of the apparatus of the present invention;
FIG. 2 is a schematic side view of the apparatus of the present invention;
FIG. 3 is a block diagram of the apparatus of the present invention.
In the figure: 1. a microcomputer monitoring device; 2. an incoming line breaker; 3. a DC220V high-frequency switching power supply output breaker; 4. a 48V communication power supply output circuit breaker; 5. a battery pack circuit breaker; 6. a bus switching breaker; 7. a DC48V high-frequency switching power supply; 8. a direct-current 220V high-frequency switching power supply; 9. moving the charging cabinet body; 10. a bus quick connector; 11. a battery pack quick connector; 12. a universal wheel; 13. double-power automatic transfer switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the transformer substation mobile DC standby power supply device of this embodiment includes a microcomputer monitoring device 1, an incoming line breaker 2, a DC220V high-frequency switching power supply output breaker 3, a 48V communication power supply output breaker 4, a storage battery breaker 5, a bus switching breaker 6, a DC48V high-frequency switching power supply 7, a DC220V high-frequency switching power supply 8, a bus quick connector 10, a battery pack quick connector 11, a universal wheel 12, and a dual power supply automatic transfer switch 13, which are installed on a mobile charging cabinet 9, where the mobile charging cabinet 9 is made of stainless steel material. The incoming line circuit breaker 2 is connected with a double-power-supply automatic change-over switch 13, the double-power-supply automatic change-over switch 13 is connected with a direct-current 220V high-frequency switching power supply, a DC220V high-frequency switching power supply output circuit breaker 3, a bus switching circuit breaker 6 and a bus quick connector 10 are sequentially connected, the bus quick connector 10 is connected with a storage battery circuit breaker 5, a direct-current 48V high-frequency switching power supply 7 is connected with a 48V direct-current output circuit breaker 4, and the microcomputer monitoring device 1 is connected with the components through RS 485.
The microcomputer monitoring device 1 adopts a microcomputer monitoring device, has the functions of output overvoltage, undervoltage protection, output current limiting protection, short circuit protection and insulation monitoring, and has the function of insulation alarm output, the dual-power automatic transfer switch 13 is designed to take a generator and a commercial power dual-path incoming line as an input power supply, a dual-power switching device is configured, the commercial power and the generator dual-path switching are configured, and the generator is automatically linked to be started and switched to the generator side when the commercial power disappears;
the model of the direct-current 48V high-frequency switching power supply 7 is a KD6BC30 power supply module, and the model of the DC220V high-frequency switching power supply output breaker 3 is a K6B20 power supply module.
The type of the double-power automatic transfer switch 13 is a BQ3-63 III/H4A switching device.
The intelligent automatic power supply system comprises a microcomputer monitoring device 1, an incoming line breaker 2, a DC220V high-frequency switch power supply output breaker 3, a 48V communication power supply output breaker 4, a storage battery pack breaker 5, a bus switching breaker 6, a direct current 48V high-frequency switch power supply 7, a direct current 220V high-frequency switch power supply 8, a bus quick connector 10, a battery pack quick connector 11 and a dual-power automatic transfer switch 13, wherein the microcomputer monitoring device is electrically connected with the incoming line breaker 2.
Under a movable charging cabinet body 9, two paths of alternating current are connected with a double-power-supply automatic transfer switch 13 through an alternating current incoming line breaker 2, the two paths of alternating current enter a direct current 220V high-frequency switch power supply 8 after being switched by the double-power-supply automatic transfer switch 13, and are converted into direct current through operations such as rectification, filtering and the like, and the direct current is output to a feeder line cabinet (selected) through a bus switching breaker 6 and a bus quick connector 10 after being protected by a DC220V high-frequency switch power supply output breaker 3; a standby battery cabinet (optional matching) is connected with a direct current system through a bus quick connector 10 and a storage battery pack circuit breaker 5, direct current 220V enters a direct current 48V high-frequency switching power supply 7 through the protection of the circuit breaker, is changed into direct current 48V after voltage transformation and filtering, is output to a 48V bus through a 48V communication power supply output circuit breaker 4, and is connected with other equipment through RS485 to achieve the functions of data collection, control, protection and the like.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A mobile direct-current standby power supply device of a transformer substation is characterized by comprising a microcomputer monitoring device, an incoming line breaker, a DC220V high-frequency switching power supply output breaker, a 48V communication power supply output breaker, a storage battery pack breaker, a bus switching breaker, a direct-current 48V high-frequency switching power supply, a direct-current 220V high-frequency switching power supply, a bus quick connector, a battery pack quick connector, universal wheels and a dual-power automatic transfer switch, wherein the microcomputer monitoring device, the incoming line breaker, the DC220V high-frequency switching power supply output breaker, the 48V communication power supply output breaker, the storage battery pack breaker, the bus switching breaker, the battery pack quick connector, the universal wheels and the dual-power automatic transfer switch are arranged on a mobile charging cabinet body;
the incoming line circuit breaker is connected with a dual-power automatic transfer switch, the dual-power automatic transfer switch is connected with a direct-current 220V high-frequency switching power supply, a DC220V high-frequency switching power supply output circuit breaker, a bus switching circuit breaker and a bus quick connector are sequentially connected, the bus quick connector is connected with a storage battery pack circuit breaker, a direct-current 48V high-frequency switching power supply is connected with a 48V direct-current output circuit breaker, and a microcomputer monitoring device is connected with the components through RS 485.
2. The substation mobile direct-current standby power supply device according to claim 1, wherein the microcomputer monitoring device has output overvoltage, undervoltage protection, output current limiting protection, short circuit protection and insulation monitoring functions, and has an insulation alarm output function.
3. The substation mobile direct-current standby power supply device according to claim 1, wherein the dual-power automatic transfer switch uses a generator and a mains supply dual-path incoming line as an input power supply, a dual-power switching device is configured, and the mains supply and the generator dual-path switching are automatically linked to start the generator and switch to the generator side when the mains supply disappears.
4. The substation mobile direct-current standby power supply device according to claim 1, wherein the direct-current 48V high-frequency switching power supply is a KD6BC30 power supply module, and the DC220V high-frequency switching power supply output breaker is a K6B20 power supply module.
5. A substation mobile DC backup power supply unit according to claim 1 or 4, characterized in that said dual power automatic transfer switch is a model BQ3-63 III/H4A switching device.
6. A substation mobile dc backup power supply device according to claim 1, characterized in that the mobile charging cabinet body is made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221808327.8U CN218300964U (en) | 2022-07-14 | 2022-07-14 | Mobile DC standby power supply device for transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221808327.8U CN218300964U (en) | 2022-07-14 | 2022-07-14 | Mobile DC standby power supply device for transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218300964U true CN218300964U (en) | 2023-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221808327.8U Active CN218300964U (en) | 2022-07-14 | 2022-07-14 | Mobile DC standby power supply device for transformer substation |
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| Country | Link |
|---|---|
| CN (1) | CN218300964U (en) |
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2022
- 2022-07-14 CN CN202221808327.8U patent/CN218300964U/en active Active
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